My son, almost three, has been in hospital twice in 6 weeks with viral induced wheeze. Second time diagnosed also with LRTI. Now he is getting out of breath when playing, restless during the night and wakes up with a cough that only stops after taking salbutamol. My question is when will be recover? Back in January a similar thing happened and it took 3 months before he seemed ok again. We’ve just started him on a brown inhaler 3 days ago. Will this improve his symptoms?